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Cheap flights from Florida Keys to London Heathrow Airport

EYW — LHR
9 Jun — 16 Jun1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Florida Keys to Heathrow

Keep the following information in mind while searching for Florida Keys to Heathrow flight deals. Data was last updated 10 May 2026.

Round-trip from

£639

One-way from

£362
Delta
  • Delta
  • 18/8-1/9
  • 3 total stops
  • 36h 00m total
  • Florida Keys to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 22/7
  • 1 total stop
  • 14h 05m total
  • Florida Keys to London
Search Deals

Cheapflights Insights

Everything you need to know about your flight from Florida Keys to London Heathrow Airport

How far ahead should I book a flight from Florida Keys to London Heathrow Airport?

The best time to book flights from Florida Keys to London Heathrow Airport is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Florida Keys to London Heathrow Airport?

Currently, August is the cheapest month in which you can book a flight from Florida Keys to London Heathrow Airport (average of £37). Flying from Florida Keys to London Heathrow Airport in June is currently the most expensive (average of £1,179). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 10 May 2026.
Read through reviews of airlines operating flights from Florida Keys to London Heathrow Airport, such as KLM,Virgin Atlantic, andAmerican Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,513 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,513 reviews
KLM
7.8
Good
1,513 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Virgin Atlantic
7.4
Good
688 reviews
KLM
7.8
Good
1,513 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
American Airlines
7.1
Good
11,668 reviews
KLM
7.8
Good
1,513 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
7,963 reviews
KLM
7.8
Good
1,513 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Food

7.3

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from Florida Keys to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Florida Keys to London Heathrow Airport?

    A quick flight from Florida Keys to London Heathrow Airport can take about 13h 36m. Delta provides one of the quickest options available for as low as £660. Florida Keys and London Heathrow Airport are separated by a distance of 4539 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Florida Keys to London Heathrow Airport one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £120. Users have also found prices from £275 and £284 on Delta and Virgin Atlantic, respectively.

  • Can I find deals for flights from Florida Keys to Heathrow that include hotel bookings?

    Yes. In addition to deals on Florida Keys to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Florida Keys to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Florida Keys to Heathrow.

  • Can I find deals for business class flights from Florida Keys to Heathrow?

    Yes. Cheapflights offers flight deals from Florida Keys to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Florida Keys to London Heathrow Airport?

    Currently, August is the cheapest month in which you can book a flight from Florida Keys to London Heathrow Airport (average of £37). Flying from Florida Keys to London Heathrow Airport in June is currently the most expensive (average of £1,179). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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Why should you use Cheapflights to find cheap flight tickets from Florida Keys to Heathrow?

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Can Cheapflights find flights from Florida Keys to Heathrow with no change fees?

Yes, we can. To see specific flights from Florida Keys to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Florida Keys to Heathrow become cheaper?

Of course! You can now track prices for flights from Florida Keys to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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